Honeywell Non-Programmable Digital Thermostat
Read and save these instructions.
For help please visit honeywellhome.com/support
Built-in compressor protection
This feature helps prevent damage to the compressor in your air conditioning or heat pump system.
Damage can occur if the compressor is restarted too soon after shutdown. This feature forces the compressor to wait 5 minutes before restarting.
During the wait time, the display will flash the message Cool On (or Heat On if you have a heat pump). When the safe wait time has elapsed, the message stops flashing and the compressor turns on.
Install fresh batteries when the REPLACE BATT warning begins flashing, once a year, or before leaving home for more than a month. The warning flashes about two months before the batteries are depleted.
Batteries provide backup power to the display during power interruptions if your thermostat was wired to run on AC power when installed. All settings are permanently stored in memory, and do not require battery power.
If you have difficulty with your thermostat, please try the following suggestions.
Most problems can be corrected quickly and easily.
Display is blank:
- Check circuit breaker and reset if necessary.
- Make sure power switch at heating & cooling system is on.
- Make sure furnace door is closed securely.
- Make sure fresh AA alkaline batteries are correctly installed (see page 4).
Heating or cooling system does not respond
- Set system switch to Heat (see page 3). Make sure the temperature is set higher than the Inside temperature.
- Set system switch to Cool (see page 3). Make sure the temperature is set lower than the Inside temperature.
- Wait 5 minutes for the system to respond.
Temperature settings do not change
Make sure heating and cooling temperatures are set to acceptable ranges:
• Heat: 40° to 90°F (4.5° to 32°C).
• Cool: 50° to 99°F (10° to 37°C).
“Cool On” or “Heat On” is flashing
Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor (see page 4).
“Heat On” is not displayed
Set the System switch to Heat, and set the temperature level above the current room temperature (see page 3).
“Cool On” is not displayed
Set the System switch to Cool, and set the temperature level below the current room temperature (see page 3).
For assistance with this product, please visit honeywellhome.com/support.
Or call Customer Care toll-free at 1-800-468-1502
Equipment damage hazard
To prevent possible compressor damage, do not operate cooling system when outdoor temperature is below 50°F (10°C).
5-year limited warranty
Resideo warrants this product, excluding battery, to be free from defects in workmanship or materials, under normal use and service, for a period of five (5) years from the date of first purchase by the original purchaser. If at any time during the warranty period the product is determined to be defective due to workmanship or materials, Resideo shall repair or replace it (at Resideo’s option).
If the product is defective,
(i) return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or
(ii) call Resideo Customer Care at 1-800-468-1502. Customer Care will make the determination whether the product should be returned to the following address: Resideo Return Goods, 1985 Douglas Dr. N., Golden Valley, MN 55422, or whether a replacement product can be sent to you.
This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Resideo that the defect was caused by damage which occurred while the product was in the possession of a consumer.
Resideo’s sole responsibility shall be to repair or replace the product within the terms stated above. RESIDEO SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you.
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY RESIDEO MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE FIVE YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.
This warranty gives you specific legal rights, and you may have other rights which vary from state to state. If you have any questions concerning this warranty, please write Resideo Customer Care, 1985 Douglas Dr, Golden Valley, MN 55422 or call 1-800-468-1502.
© 2021 Resideo Technologies, Inc. All rights reserved. This product is manufactured by Resideo Technologies, Inc. and its affiliates
Resideo Technologies, Inc.
1985 Douglas Drive North, Golden Valley, MN 55422 1-800-468-1502
69-1776EFS—05 M.S. 05-21 | Printed in United States
Documents / Resources
|Honeywell Non-Programmable Digital Thermostat [pdf] User Guide|
Honeywell, Non-Programmable, Digital, Thermostat, PRO, 3000 Series